git.postgresql.org Git - postgresql.git/commitdiff

diff --git a/doc/src/sgml/ref/merge.sgml b/doc/src/sgml/ref/merge.sgml

index 0ca3d26ff4848001eb5421a5d006ee6fd5d81355..31ba7a841d127fc6e927dec5e3e2e2aabdf6f53e 100644 (file)

--- a/doc/src/sgml/ref/merge.sgml

+++ b/doc/src/sgml/ref/merge.sgml

INSERT [( <replaceable class="parameter">column_name</replaceable> [, ...] )]

[ OVERRIDING { SYSTEM | USER } VALUE ]

-{ VALUES ( { <replaceable class="parameter">expression</replaceable> | DEFAULT } [, ...] ) | DEFAULT VALUES }

+{ VALUES ( { <replaceable class="parameter">expression</replaceable> | DEFAULT } ) | DEFAULT VALUES }

and <replaceable class="parameter">merge_update</replaceable> is

<command>INSERT</command> actions cannot contain sub-selects.

</para>

<para>

+ Only one <literal>VALUES</literal> clause can be specified.

The <literal>VALUES</literal> clause can only refer to columns from

the source relation, since by definition there is no matching target row.

</para>